We
have been a manufacturer of metal stampings for more than 160
years.Today, we have a standard line of threaded parts that we refer to
as “Welding Flanges”. Other people may call them by other names such
as: bungs,
pressings and bosses, just to name a few. Essentially they are very
similar in function to a half coupling
but dimensionally they have a lower profile and pilot into the tank
through a punched hole. They have excellent welding compatibility
because they are
manufactured from slit coil raw material, which is the samematerial as
the tank skin.